I have created a web application and then site collection by using my custom template site definition. Its created successfully. But when I access my application I get authentication dialog box for entering user name and password. I entered correct username like domain\username and correct password. The user name and password are 100% correct because I can login with these credentials to other web applications. The problem is that, I clicked many times (10 or more times) on OK button on authentication dialog, but it never goes and appear again and again. It even does not show any error code like 401 un-authorized etc.
Any idea what's wrong??